2011204237212 has 144 divisors (see below), whose sum is σ = 5249234538912. Its totient is φ = 648798958080.

The previous prime is 2011204237177. The next prime is 2011204237213. The reversal of 2011204237212 is 2127324021102.

It is a happy number.

2011204237212 is a `hidden beast` number, since 2 + 0 + 1 + 1 + 20 + 423 + 7 + 212 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011204237213) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 213476262 + ... + 213485682.

Almost surely, 2^{2011204237212} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2011204237212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2624617269456).

2011204237212 is an abundant number, since it is smaller than the sum of its proper divisors (3238030301700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2011204237212 is a wasteful number, since it uses less digits than its factorization.

2011204237212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10308 (or 10303 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

Adding to 2011204237212 its reverse (2127324021102), we get a palindrome (4138528258314).

The spelling of 2011204237212 in words is "two trillion, eleven billion, two hundred four million, two hundred thirty-seven thousand, two hundred twelve".